#include "UdpServer.hpp"
#include <memory>
#include <vector>
#include <cstdio>

void Usage(std::string proc)
{
    std::cout << "\n\rUsage: " << proc << " port[1024+]\n"
              << std::endl;
}

std::string Handler(const std::string &str)
{
    std::string res("Server get a message: ");
    res += str;
    std::cout << res << std::endl;

    return res;
}

bool SafeCheck(const std::string &cmd)
{
    std::vector<std::string> key_word ={
        "rm",
        "mv",
        "cp",
        "kill",
        "sudo",
        "unlink",
        "uninstall",
        "yum",
        "top",
        "while"
    };
    for(auto& word : key_word)
    {
        auto pos = cmd.find(word);
        if(pos!=std::string::npos) return false;
    }

    return true;
}

std::string ExcuteCommand(const std::string &cmd)
{
    std::cout<<"get a request cmd: "<<cmd<<std::endl;
    if(!SafeCheck(cmd)) return "Bad man";

    FILE *fp = popen(cmd.c_str(), "r");
    if (nullptr == fp)
    {
        perror("popen");
        return "error";
    }
    std::string result;
    char buffer[4096];
    while (true)
    {
        char *ok = fgets(buffer, sizeof(buffer), fp);
        if (ok == nullptr)
            break;
        result += buffer;
    }
    pclose(fp);

    return result;
}

int main(int argc, char *argv[])
{
    if (argc != 2)
    {
        Usage(argv[0]);
        exit(0);
    }
    uint16_t port = std::stoi(argv[1]);

    std::unique_ptr<UdpServer> svr(new UdpServer(port));

    svr->Init(/**/);
    svr->Run();
    // svr->Run(ExcuteCommand);

    return 0;
}